importantSYS.SOURCE: GitHub• 2026-11-04T14:58:52Z

Formal Verification of TypeScript Type Safety with TScert

#typescript #formal-verification #type-safety #proof-carrying-code #lean4

TScert is a formally verified TypeScript type checker implemented in Lean, ensuring type safety through mathematical proofs. It rejects unsafe code patterns like undefined index accesses that traditional TypeScript checkers allow.

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